Re: Need unrounded precision

From: Date: Wed, 04 Nov 2009 16:23:32 +0000
Subject: Re: Need unrounded precision
References: 1 2 3  Groups: php.general 
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Matthew McKay wrote:
Kim Madsen wrote:
Hello Andre Dubuc wrote on 2010-01-02 02:20:
Hi, I need to extract the first digit after the decimal point from a number such as 28.56018, which should be '5'.
Since no one came up with the simple solution: $num = "28.56018"; ereg("^[0-9]+\.([0-9]){1}", trim($num), $regs); if($regs[1]) $digit = $regs[1]; else print "no digit found";
My submission for a "simple" solution. I wish I had xslt2 =( <xsl:template name="firstDigit"> <xsl:param name="number"/> <xsl:value-of select="number(substring(substring-after(number(translate(normalize-space($number),translate(normalize-space($number),'.0123456789',''),'')),'.'),1,1))"/> </xsl:template>
nice to see a bit of xslt w/ functions :) just for the hell of it here's one off the top of my head $num = 28.56018; substr((int)($num*10) , -1); #5 and one without any functions.. (int)(($num-(int)$num)*10); #5

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